Sliding door guide roller



FIG. 1 is a front elevational view of a sliding door guide roller showing my new design;

FIG. 2 is a left end elevational view thereof, the opposite end elevational view being a mirror image;

FIG. 3 is a rear elevational view thereof;

FIGS. 4 and 5 are respectively bottom and top plan views. 

The ornamental design for a sliding door guide roller, as shown and described. 